Service parts for the DYH 250 kW Series
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | ASTM No. 2 Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 250 kW |
| Controller | Engine Monitor Printed Circuit Plug-in Modules |
| Oil capacity | 15.0 L |
| Alternator | YB 17 |
| Voltage options | 60 V, 50 V |
| Phase | Single Phase |
| Power factor | 0.8 |
| Battery group | 2 x 12V, 225 Ah |
| Battery voltage | 24 V |
| Battery quantity | 2 |
| Coolant capacity | 16.5 L |
| Dimensions (L×W×H) | 2768×1117×1778 mm |
| Dry weight | 2951 kg |
Maintenance & consumables
for the Allis-Chalmers 6138T| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Replace or clean when plugged, or in accordance with service maintenance instructions. | M-1190 | 1000 hr | Amazon eBay | |
| Fuel filter | — | 500 hr | |||
| Oil filter | — | 1000 hr | |||
| Battery | — | 500 hr | |||
| Belt | — | 1000 hr | |||
| Coolant | — | 3 hr | |||
| Oil | — | ||||
| Spark plug | — | 1000 hr |
Common questions
What is the power rating of the Cummins/Onan DYH 250 kW Series?
The Cummins/Onan DYH 250 kW Series is rated 250 kW standby.
What engine is in the Cummins/Onan DYH 250 kW Series?
The Cummins/Onan DYH 250 kW Series is powered by the Allis-Chalmers 6138T engine.
What fuel does the Cummins/Onan DYH 250 kW Series use?
The Cummins/Onan DYH 250 kW Series runs on ASTM No. 2 Diesel.
What alternator comes on the Cummins/Onan DYH 250 kW Series?
The Cummins/Onan DYH 250 kW Series uses a YB 17 alternator.
What air filter does the Cummins/Onan DYH 250 kW Series use?
The Cummins/Onan DYH 250 kW Series uses air filter part number M-1190.
Troubleshooting
6Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Engine stops cranking and fault lamp lights, after cranking approximately 75 seconds. | See.engine service manual for troubleshooting fuel system. After correcting problem, reset engine monitor relay by placing Run-Stop/Reset-Remote switch to Stop/Reset, then back to the required running position. |
| Fault lamp lights immediately after engine starts. | Check for: Overspeed condition as engine starts. |
| Fault lamp lights and engine shuts down after running for a period. | Check the following: a. Oil level. Engine will shut down if sensor is closed. b. Check engine manual for troubleshooting oil system. c. High engine temperature. Check coolant level; check water flow (city water cooled systems); check radiator for free air flow, and fan belts for tightness. See engine manual for troubleshooting cooling system. d. Check for faulty oil pressure sensor or faulty high engine temperature sensor. |
| Engine runs, shuts down and cranks for 75-seconds. Cranking cycle stops; fault lamp lights. | Check fuel supply. |
| Fault lamp lights, no fault exists. | To check a no-fault condition, disconnect leads from T B l l terminals 29, 30 and 31. If fault lamp lights with leads disconnected, replace engine monitor board. Reconnect leads. |
| Overcrank fault lamp lights and engine stops cranking after approximately 75-seconds. | See engine service manual for troubleshooting fuel system. After correcting fault, reset engine monitor relay by placing Run-Stop/Reset-Remote switch to Stop/Reset position, depressing Reset button, then to the required running position. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan DYH 250 kW Series troubleshooting guide (10 entries) →
Parts
3| Part # | Description | Qty | System | |
|---|---|---|---|---|
| M-1190 | AIR FILTER | 1 | Air filter | Amazon eBay |
| M-1191 | ENGINE HEATER | Water | Amazon | |
| M-1189 | ENGINE HEATER | Service part / kit | Amazon eBay |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Standby | 71.92 | 19.0 |